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Add unit tests for step timing function.

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This commit is contained in:
Boris Chiou 2017-03-06 18:30:35 +08:00
parent 99ef3d701a
commit cad0cd3711
2 changed files with 17 additions and 0 deletions
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4
tests/unit/style/parsing/transition_timing_function.rs
View file

@ -25,11 +25,15 @@ fn test_cubic_bezier() {
#[test]
fn test_steps() {
assert_roundtrip_with_context!(transition_timing_function::parse, "steps(1)");
assert_roundtrip_with_context!(transition_timing_function::parse, "steps( 1)", "steps(1)");
assert_roundtrip_with_context!(transition_timing_function::parse, "steps(1, start)");
assert_roundtrip_with_context!(transition_timing_function::parse, "steps(2, end) ", "steps(2)");
// Step interval value must be an integer greater than 0
assert!(parse(transition_timing_function::parse, "steps(0)").is_err());
assert!(parse(transition_timing_function::parse, "steps(0.5)").is_err());
assert!(parse(transition_timing_function::parse, "steps(-1)").is_err());
assert!(parse(transition_timing_function::parse, "steps(1, middle)").is_err());
}
#[test]

13
tests/unit/style/properties/serialization.rs
View file

@ -1210,6 +1210,19 @@ mod shorthand_serialization {
assert_eq!(serialization, block_text);
}
#[test]
fn transition_should_serialize_acceptable_step_timing_function() {
let block_text = "transition-property: margin-left; \
transition-duration: 3s; \
transition-delay: 4s; \
transition-timing-function: steps(2, start);";
let block = parse(|c, i| Ok(parse_property_declaration_list(c, i)), block_text).unwrap();
let serialization = block.to_css_string();
assert_eq!(serialization, "transition: margin-left 3s steps(2, start) 4s;");
}
#[test]
fn transition_should_serialize_acceptable_frames_timing_function() {
let block_text = "transition-property: margin-left; \